A sieving device for polymer-modified bentonite materials

Abstract

This utility model relates to the field of material screening technology, and in particular to a screening device for polymer-modified bentonite materials. It solves the problems of poor screening quality, easy mixing of large particles into the finished product, and easy material accumulation and blockage affecting the stability of continuous operation in existing pneumatic screening methods. The device includes a base and a support frame located at the center of the top of the base. A screening hopper is detachably connected inside the support frame, and the bottom of the screening hopper has screen holes. Support sleeves are connected to both sides of the top of the base. This utility model uses a vibrating motor to drive the screening hopper to vibrate, and combines this with a reciprocating lifting assembly to drive the screening hopper to generate compound vibration, enhancing screening efficiency and uniformity. Simultaneously, the use of a detachable screening hopper and a flexible material discharge channel improves the adaptability of the equipment and the stability of material conveying, effectively preventing dust overflow and blockage, achieving continuous and stable screening process, high screening accuracy, and stable and reliable operation.

Description

Technical Field

[0001] This utility model relates to the field of material screening technology, and in particular to a screening device for polymer-modified bentonite materials. Background Technology

[0002] Polymer-modified bentonite is a functional material that enhances the adsorption, dispersibility, and stability of natural bentonite by introducing polymer molecular chains. It is widely used in environmental protection, oil drilling, casting, wastewater treatment, and building materials. Due to its strong water absorption and swelling capacity and ion exchange ability, it plays a vital role in various industrial applications. However, in actual production, polymer-modified bentonite is usually in powder form. To ensure its subsequent processing performance and application effectiveness, the material must be effectively sieved to remove large particles or agglomerates, ensuring uniform particle size distribution and good flowability. Therefore, designing an efficient, stable, and highly accurate sieving device is a key step in ensuring the quality and production efficiency of polymer-modified bentonite products.

[0003] A current utility model patent, CN 211437020 U, discloses a bentonite screening device, including a blower, air duct, hopper, feeding pipe, sieve, screening box, discharge hopper, and bag clamp. This device adds ground bentonite to the hopper, screens it, and then feeds it into the feeding pipe. Under the force of the blower, it is conveyed to the screening box, utilizing the difference in the movement paths of particles of different sizes in the wind field to achieve grading and screening. Although this solution improves screening efficiency to some extent and reduces noise pollution from traditional vibrating screens, it still has significant drawbacks in practical applications: the device uses direct airflow for screening, lacking an effective material separation control mechanism, resulting in poor screening quality. Some large particles are not effectively intercepted and mix into the finished product. Due to strong airflow disturbance, some bentonite easily accumulates or adheres inside the screening box, causing material retention, channel blockage, and affecting the stability of continuous operation.

[0004] Therefore, to address the shortcomings of existing technologies, we urgently need a screening device for polymer-modified bentonite materials to solve this problem. This new device should significantly improve screening efficiency and accuracy, while better meeting the demands of modern precision processing for product quality and automation, providing strong support for the high-quality development of bentonite materials and related industries. Utility Model Content

[0005] The purpose of this invention is to provide a screening device for polymer-modified bentonite materials, which solves the problems of poor screening quality, failure to effectively intercept large particles and mix them into the finished product, and the accumulation or adhesion of bentonite inside the screening box due to strong airflow disturbance, which causes material retention, blockage of the channel and affects the stability of continuous operation.

[0006] To achieve the above objectives, this utility model provides a sieving device for polymer-modified bentonite materials, including a base and a support frame disposed at the center of the top of the base;

[0007] The inside of the support frame is detachably connected to a screening hopper. The bottom of the screening hopper has several screening holes. The top two sides of the base are connected to support sleeves. The bottom two sides of the support frame are provided with support plates. The bottom of the support plate is fixedly connected to a lifting column that slides with the inside of the support sleeve. One side of the support sleeve is provided with a reciprocating lifting assembly that cooperates with the lifting column.

[0008] The bottom of the support frame is connected to the top of the support plate through a vertical elastic structure. A vibration motor is installed on one side of the screening hopper. A collection bin is provided at the bottom of the screening hopper and connected to the top of the base. A top cover is bolted to the top of the screening hopper.

[0009] The bottom of the screening hopper is provided with a material discharge channel, and the top edge of the material discharge channel is fixedly connected to the bottom of the screening hopper with bolts.

[0010] The vertical elastic structure includes two round rods and several compression springs. One end of each round rod is connected to the bottom of the support frame, and the other end slides through the support plate. One end of each compression spring is connected to the bottom of the support frame, and the other end is connected to the top of the support plate.

[0011] The material discharge channel is made of flexible material, and one end of the material discharge channel extends to the top of the collection bin. The top of the base is provided with a placement slot that is compatible with the collection bin.

[0012] The outer ring of the screening hopper is fixedly connected to the top of an mounting ring plate, and the bottom of the mounting ring plate is bolted to the top of the bearing frame.

[0013] The support sleeve has vertical grooves on both sides that communicate with the inside of the support sleeve. The bottom of both sides of the lifting column is fixedly connected to guide rods that slide with the vertical grooves. The reciprocating lifting assembly includes a drive motor installed on one side of the support sleeve and a linkage rod set on the other side of the support sleeve. The output shaft of the drive motor rotates through the support sleeve and is connected to a rotating plate. The bottom of one side of the linkage rod is rotatably connected to the side wall of the rotating plate, and the top of one side of the linkage rod is rotatably connected to the end of the adjacent guide rod.

[0014] This utility model discloses a screening device for polymer-modified bentonite materials, which combines mechanical vibration with gravity screening. A vibrating motor drives the screening hopper to vibrate at high frequency, and a reciprocating lifting assembly drives the hopper to generate a composite motion trajectory, effectively improving screening efficiency and accuracy, preventing large particles from mixing into the finished product, and ensuring stable product quality. Simultaneously, the detachable design of the screening hopper facilitates the replacement of screens of different specifications, enhancing the equipment's versatility and flexibility. The collection bin is located directly below the screening hopper, efficiently collecting undersized materials and reducing dust and environmental pollution. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0017] Figure 2 This is a structural schematic diagram of the screening hopper and mounting ring plate according to an embodiment of the present invention.

[0018] Figure 3 This is a structural schematic diagram of the base and placement slot according to an embodiment of the present utility model.

[0019] Figure 4 This is a structural schematic diagram of the support sleeve and vertical groove according to an embodiment of the present utility model.

[0020] Figure 5 This is a schematic diagram of the rotating plate and linkage rod according to an embodiment of the present invention.

[0021] In the diagram: 1. Base; 2. Support sleeve; 3. Lifting column; 4. Bearing frame; 5. Screening hopper; 6. Material discharge channel; 7. Round rod; 8. Compression spring; 9. Mounting ring plate; 10. Drive motor; 11. Placement slot; 12. Vertical slot; 13. Linkage rod; 14. Guide rod; 15. Rotating plate. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0023] Example 1

[0024] Please see Figure 1-5 As shown, a sieving device for polymer-modified bentonite material in this embodiment includes a base 1 and a support frame 4 disposed at the top center of the base 1.

[0025] The inside of the bearing frame 4 is detachably connected to a screening hopper 5. The bottom of the screening hopper 5 is provided with several screening holes. The top two sides of the base 1 are connected to support sleeves 2. The bottom two sides of the bearing frame 4 are provided with support plates. The bottom of the support plate is fixedly connected to a lifting column 3 that slides inside the support sleeve 2. A reciprocating lifting component that cooperates with the lifting column 3 is provided on one side of the support sleeve 2.

[0026] The bottom of the support frame 4 is connected to the top of the support plate through a vertical elastic structure. A vibration motor is installed on one side of the screening hopper 5. The bottom of the screening hopper 5 is provided with a collection bin connected to the top of the base 1. The top of the screening hopper 5 is bolted to a top cover.

[0027] In practical use, the polymer-modified bentonite material to be screened is first loaded into the screening hopper 5 through the top cover. The screening hopper 5 is detachably connected to the inside of the support frame 4, making it easy to replace the screens with different mesh sizes to meet different particle size requirements. After the vibration motor is started, the screening hopper 5 vibrates and drives the material inside to shake up and down and pass through the screen holes at the bottom, achieving preliminary classification and screening. Fine powder that meets the particle size requirements falls into the collection bin below through the screen holes for collection, while large particles or agglomerates are trapped in the screening hopper 5 for easy centralized cleaning. Support plates are provided on both sides of the bottom of the support frame 4. The bottom of the support plates is fixedly connected to the lifting column 3. The lifting column 3 slides with the support sleeves 2 on both sides of the top of the base 1 and is driven up and down by the reciprocating lifting assembly, so that the screening hopper 5 generates a compound vibration effect in the vertical direction, enhancing screening efficiency and uniformity. At the same time, a vertical elastic structure is provided between the support frame 4 and the support plate to further buffer the vibration impact and maintain stable equipment operation. The entire device is compact in structure, easy to operate, and suitable for continuous production operations.

[0028] Example 2

[0029] Please see Figure 1-5As shown in this embodiment, a sieving device for polymer-modified bentonite material is provided. The bottom of the screening hopper 5 is provided with a material discharge channel 6. The top edge of the material discharge channel 6 is bolted to the bottom of the screening hopper 5. Specifically, through the combination of the material discharge channel 6 at the bottom of the screening hopper 5 and the collection bin, after screening, the fine powder that meets the particle size requirements is screened through the sieve holes and then transported to the inside of the collection bin through the material discharge channel 6. This avoids the material from scattering or clogging during the falling process, thereby achieving the effects of preventing dust overflow, improving collection efficiency, and improving the working environment.

[0030] The material discharge channel 6 is made of flexible material, and one end of the material discharge channel 6 extends to the top of the collection bin. The top of the base 1 is provided with a placement groove 11 that is compatible with the collection bin. Specifically, by using a flexible material for the material discharge channel 6 and cooperating with the placement groove 11 on the top of the base 1, during the screening process, the material discharge channel 6 can automatically adapt to the position change of the collection bin as the screening hopper 5 swings slightly. At the same time, the collection bin is stably embedded in the placement groove 11, ensuring that its position is accurate and that it maintains good docking with the material discharge channel 6. This achieves the good effect of improving the overall structural compactness and ensuring the continuous and stable screening process.

[0031] Example 3

[0032] Please see Figure 1-5 As shown in the figure, a sieving device for polymer-modified bentonite material in this embodiment includes a vertical elastic structure comprising two round rods 7 and several compression springs 8. One end of the round rod 7 is connected to the bottom of the support frame 4, and the other end slides through the support plate. One end of the compression spring 8 is connected to the bottom of the support frame 4, and the other end is connected to the top of the support plate. Specifically, through the cooperative arrangement of the round rods 7 and compression springs 8 in the vertical elastic structure, during the vibration of the screening hopper 5, the support frame 4 generates relative displacement between the round rods 7 and the support plate, and the compression springs 8 are compressed or rebound accordingly, effectively absorbing some vibration energy and buffering the impact force during equipment operation, thereby reducing the vibration noise and structural fatigue damage of the whole machine, and achieving the effect of enhancing the stability of device operation and extending service life.

[0033] The top of the outer ring of the screening hopper 5 is fixedly connected to an mounting ring plate 9. The bottom of the mounting ring plate 9 is bolted to the top of the bearing frame 4. Specifically, by fixing the mounting ring plate 9, which is fixedly connected to the top of the outer ring of the screening hopper 5, to the top of the bearing frame 4, the operator can quickly replace the screening hopper 5 with different screen hole specifications by disassembling the mounting ring plate 9. This improves the adaptability of the screening device to materials of different particle sizes, achieves the purpose of easy maintenance and flexible adjustment of screening accuracy, and enhances the versatility and ease of use of the equipment.

[0034] Both sides of the support sleeve 2 are provided with vertical grooves 12 communicating with the interior of the support sleeve 2. Guide rods 14, which slide in cooperation with the vertical grooves 12, are fixedly connected to the bottom of both sides of the lifting column 3. The reciprocating lifting assembly includes a drive motor 10 installed on one side of the support sleeve 2 and a linkage rod 13 located on the other side of the support sleeve 2. The output shaft of the drive motor 10 rotates through the support sleeve 2 and is connected to a rotating plate 15. The bottom of one side of the linkage rod 13 is rotatably connected to the side wall of the rotating plate 15, and the top of one side of the linkage rod 13 is rotatably connected to the end of the adjacent guide rod 14. Specifically... Through the coordinated arrangement of the vertical grooves 12 on both sides of the support sleeve 2, the guide rod 14 connected to the bottom of the lifting column 3, the drive motor 10, the linkage rod 13, and the rotating plate 15, after the drive motor 10 is started, its output shaft drives the rotating plate 15 to rotate, and the linkage rod 13 swings back and forth accordingly. Through the rotational connection with the guide rod 14, it drives the lifting column 3 to move up and down along the vertical groove 12, thereby driving the screening bucket 5 to perform compound vibrating screening, which enhances the uniformity of material dispersion on the screen surface and screening efficiency, and achieves the purpose of improving screening quality and optimizing screening effect.

[0035] This utility model provides a sieving device for polymer-modified bentonite materials. Its overall structure includes a base 1, a bearing frame 4, a screening hopper 5, a support sleeve 2, a lifting column 3, a reciprocating lifting assembly, a vertical elastic structure, a vibrating motor, a collection bin, a top cover, a material discharge channel 6, a mounting ring plate 9, a placement groove 11, a guide rod 14, a drive motor 10, a linkage rod 13, and a rotating plate 15, among other core components. Specifically, the base 1 serves as the basic support structure, with the bearing frame 4 fixedly positioned at the top center of the base 1. Internally, it is bolted to the screening hopper 5 via an mounting ring plate 9, facilitating the replacement of screens with different mesh sizes. The screening hopper 5 has several screen holes at its bottom, connected to a flexible material discharge channel 6. This discharge channel 6 extends to the top of the collection chamber below, ensuring that the screened material smoothly enters the collection chamber and embeds into the placement slot 11 at the top of the base 1, preventing dust spillage. The top of the screening hopper 5 is bolted to a top cover to prevent material scattering. A vibration motor is installed on one side of the screening hopper 5 to drive it to generate high-frequency vibration. Support plates are located on both sides of the bottom of the bearing frame 4, with the bottom of the support plates... The lifting column 3 is fixedly connected and inserted into the support sleeve 2, and can slide up and down. Vertical grooves 12 are opened on both sides of the support sleeve 2, and a guide rod 14 is provided at the bottom of the lifting column 3. The two cooperate to form a guide structure. The reciprocating lifting assembly consists of a drive motor 10, a rotating plate 15, and a linkage rod 13. The output shaft of the drive motor 10 drives the rotating plate 15 to rotate, and the linkage rod 13 swings back and forth accordingly. Through the rotational connection with the guide rod 14, it drives the lifting column 3 to move up and down along the vertical groove 12, thereby driving the screening bucket 5 to perform compound vibrating screening. A vertical elastic structure is provided between the bearing frame 4 and the support plate, which includes two round rods 7 and multiple compression springs 8, which play a role in buffering and shock absorption.

[0036] In actual use, the polymer-modified bentonite material to be screened is first loaded into the screening hopper 5 through the top cover, and the top cover is closed to prevent dust from escaping. After the vibration motor is started, the screening hopper 5 generates high-frequency vibration, which makes the material evenly distributed on the screen surface and shaken downwards. Fine powder passes through the screen holes and enters the discharge channel 6, and finally falls into the collection bin for collection. Large particles or agglomerates are trapped in the screening hopper 5 for easy subsequent cleaning. At the same time, the drive motor 10 is started, which drives the rotating plate 15 to rotate, and the linkage rod 13 swings back and forth, pushing the guide rod 14 along the vertical groove. The 12 slides up and down, thereby driving the lifting column 3 and the screening hopper 5 to reciprocate up and down, enhancing the material dispersion and screening efficiency during the screening process; a vertical elastic structure, consisting of a round rod 7 and a compression spring 8, is provided between the bearing frame 4 and the support plate, which absorbs part of the impact force during the vibration of the screening hopper 5, keeping the whole machine running smoothly; after screening, the operator can disassemble and install the ring plate 9 to replace the screening hopper 5, or remove the collection bin for material transfer and equipment cleaning; the whole device has a compact structure, runs smoothly, and has high screening efficiency, making it suitable for continuous production operations.

[0037] The screening device provided by this utility model has significant technical advantages: Addressing the problems of poor screening quality, easy clogging, and weak separation control in existing pneumatic screening methods, it adopts a combination of mechanical vibration and gravity screening. A vibrating motor drives the screening hopper 5 to vibrate at high frequency, and a reciprocating lifting assembly drives the screening hopper 5 in a combined up-and-down motion, effectively improving screening efficiency and accuracy, preventing large particles from mixing into the finished product, and ensuring stable product quality. Simultaneously, the detachable design of the screening hopper 5, combined with the bolted connection between the mounting ring plate 9 and the bearing frame 4, facilitates the replacement of screens of different specifications, enhancing the equipment's flexibility. The material feeding channel 6 is made of flexible material and extends to the top of the collection bin. Together with the placement groove 11 on the top of the base 1, it improves the continuity and stability of material conveying, prevents dust leakage, and improves the working environment. The use of the round rod 7 and the compression spring 8 in the vertical elastic structure further buffers vibration and impact, reduces equipment noise, and extends service life. In addition, the reciprocating lifting assembly is composed of a drive motor 10, a linkage rod 13, a guide rod 14, and a vertical groove 12, which realizes the composite vibration of the screening bucket 5, improves the uniformity of material distribution on the screen surface, and optimizes the screening effect.

[0038] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A sieving device for polymer-modified bentonite materials, characterized in that, include: The base and the support frame located at the center of the top of the base; The inside of the support frame is detachably connected to a screening hopper. The bottom of the screening hopper has several screening holes. The top two sides of the base are connected to support sleeves. The bottom two sides of the support frame are provided with support plates. The bottom of the support plate is fixedly connected to a lifting column that slides with the inside of the support sleeve. One side of the support sleeve is provided with a reciprocating lifting assembly that cooperates with the lifting column. The bottom of the support frame is connected to the top of the support plate through a vertical elastic structure. A vibration motor is installed on one side of the screening hopper. A collection bin is provided at the bottom of the screening hopper and connected to the top of the base. A top cover is bolted to the top of the screening hopper.

2. The sieving device for polymer-modified bentonite material according to claim 1, characterized in that, The bottom of the screening hopper is provided with a material discharge channel, and the top edge of the material discharge channel is fixedly connected to the bottom of the screening hopper with bolts.

3. The sieving device for polymer-modified bentonite material according to claim 1, characterized in that, The vertical elastic structure includes two round rods and several compression springs. One end of each round rod is connected to the bottom of the support frame, and the other end slides through the support plate. One end of each compression spring is connected to the bottom of the support frame, and the other end is connected to the top of the support plate.

4. The sieving device for polymer-modified bentonite material according to claim 2, characterized in that, The material discharge channel is made of flexible material, and one end of the material discharge channel extends to the top of the collection bin. The top of the base is provided with a placement slot that is compatible with the collection bin.

5. The sieving device for polymer-modified bentonite material according to claim 3, characterized in that, The top of the outer ring of the screening hopper is fixedly connected to an installation ring plate, and the bottom of the installation ring plate is bolted to the top of the bearing frame.

6. The sieving device for polymer-modified bentonite material according to claim 5, characterized in that, Both sides of the support sleeve are provided with vertical grooves that communicate with the inside of the support sleeve. The bottom of both sides of the lifting column are fixedly connected with guide rods that slide with the vertical grooves. The reciprocating lifting assembly includes a drive motor installed on one side of the support sleeve and a linkage rod set on the other side of the support sleeve. The output shaft of the drive motor rotates through the support sleeve and is connected to a rotating plate. The bottom of one side of the linkage rod is rotatably connected to the side wall of the rotating plate, and the top of one side of the linkage rod is rotatably connected to the end of the adjacent guide rod.

Images